Heating boilers. Heating boilers with forced draught Burners. Nominal heat output not exceeding 10 MW and maximum operating temperature of 110°C— 132 стр.
Specification for installation of gas-fired hot water boilers of rated inputs of between 70kW (net) and 1.8 MW (net) (2nd and 3rd family gases)— 52 стр.
Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)— 66 стр.